Club Certificate2025
JOKERITA-746J80
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Rated boat velocities in knots
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat Angles43.0°43.0°40.6°38.3°37.6°37.4°37.4°37.9°40.4°
Beat VMG2.373.273.974.414.564.634.674.674.49
52°3.714.965.806.226.376.446.506.546.48
60°3.965.215.986.366.546.646.706.786.75
75°4.115.366.106.506.776.947.067.227.28
90°4.205.506.266.536.867.167.397.737.94
110°4.335.676.496.967.297.597.888.469.06
120°4.195.566.457.027.507.978.389.3210.46
135°3.655.036.076.737.327.978.7911.1612.88
150°3.014.275.346.146.727.227.7510.2413.58
Run VMG2.613.694.625.325.856.266.718.8611.76
Gybe Angles144.1°144.1°148.6°151.7°153.4°152.3°148.0°142.3°147.5°
APH ToD:593.2CDL: 7.181APH ToT: 1.0114CertNo:25/2
BOAT
ClassJ-80 ODDesignerJOHNSTONEBuilderJ-CompositeAge date06/2005Series date01/1995Offset filej80.OD.offData fileI746J80
HULL
Length Overall8.032 mMaximum Beam2.488 mDraft1.497 mDisplacement1,437 kgDLR4.5634IMS DivisionSportboatDynamic Allowance0.000%Age Allowance0.487%
PROPELLER
InstallationNo PropellerTypeN/ADiameterN/A
CREW
Maximum weight350 kg(declared)Minimum weight220 kg ✱ when appliedNon Manual PowerNoCrew Arm Extension-0.20 m
SAIL AREAS (m²)
MeasuredRatedMainsail20.9121.53Headsail Luffed13.9813.98Headsail FlyingSymmetricAsymmetric64.9964.99 (All asymmetric spinnakers with SHW/SFL > 85%)
STORM SAIL AREAS (m²)
Trysail6.10Storm Jib4.58Heavy Weather Jib12.35
SAIL LIMITS
Headsails5
✱ One set on the forestay
Spinnakers4
STABILITY
Righting MomentN/AStability IndexN/A
The owner and any other person in charge is responsible that boat is complying with her certificate in accordance with RRS 78.1 and ORC Rule 304.
Club Certificate2025
JOKERITA-746J80
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Time Allowances in secs/NM
Wind Velocity 4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Beat VMG1517.71099.8906.0816.3788.8777.1771.0770.6802.3
52°970.7725.3620.2579.2565.4558.6554.2550.2555.9
60°909.3691.0601.6565.7550.2542.5536.9531.0533.1
75°876.8671.9589.9554.2532.0518.6510.1498.8494.6
90°857.3654.0575.1551.0525.0503.1486.9465.8453.4
110°830.9634.7554.6517.2493.8474.6457.0425.6397.1
120°858.6647.9558.1513.1479.7451.9429.7386.2344.1
135°987.4716.3592.7535.0491.8451.5409.7322.5279.4
150°1196.7843.8674.5586.4535.6498.8464.3351.7265.0
Run VMG1381.7974.3778.9676.1615.2575.0536.2406.1306.0
Selected Courses
Windward / Leeward1449.21037.0842.4746.2702.0676.0653.6588.4554.2
All purpose1094.5803.1671.6610.7578.9557.2538.6496.4474.3
Single Number Scoring Options
CourseTime On
Distance
Time On
Time
Windward / Leeward725.90.8265
All purpose593.21.0114
 
Custom scoring options for Australia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Custom scoring options for Austria
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Brazil
Scoring OptionTime On
Time
Upwind "bolina"0.7083
Downwind "popa"0.9207
70% up, 30% down "Ilhabela"0.7610
30% up, 70% down "Ilhabela-inverso"0.8447
Custom scoring options for Bulgaria
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Predominantly Upwind649.50.9237
Predominantly Downwind588.31.0198
Custom scoring options for Canada
Scoring OptionTODTOT
Triple Number AP Low737.40.8137
Triple Number AP Medium591.81.0138
Triple Number AP High527.41.1376
Triple Number Windward/Leeward Low981.10.6116
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Single Number Predominant Upwind673.00.8916
Single Number Predominant Reaching583.41.0284
Single Number Predominant Downwind606.90.9887
Predominant Upwind - Low896.20.6695
Predominant Upwind - Low/Med700.60.8564
Predominant Upwind - Medium633.10.9478
Predominant Upwind - Med/High596.81.0053
Predominant Upwind - High575.31.0429
Predominant Downwind Low863.70.6947
Predominant Downwind Low/Med658.80.9108
Predominant Downwind Medium573.81.0457
Predominant Downwind Med/High504.11.1903
Predominant Downwind High436.81.3738
Predominant Reaching Low782.70.7665
Predominant Reaching Low/Med619.10.9692
Predominant Reaching Medium555.11.0810
Predominant Reaching Med/High504.41.1895
Predominant Reaching High464.31.2922
SA/DSPL Upwind27.37SA/DSPL Downwind67.39
Scoring OptionTODTOT
5-Band Windward/Leeward Low1091.50.5497
5-Band Windward/Leeward Low/Med816.40.7349
5-Band Windward/Leeward Medium712.60.8420
5-Band Windward/Leeward Med/High650.30.9226
5-Band Windward/Leeward High593.71.0106
Windward/Leeward 60-40 Low1104.40.5433
Windward/Leeward 60-40 Low/Med830.30.7227
Windward/Leeward 60-40 Medium730.00.8219
Windward/Leeward 60-40 Med/High675.00.8889
Windward/Leeward 60-40 High630.20.9521
5-Band AP Low803.90.7464
5-Band AP Low/Med655.80.9149
5-Band AP Medium584.91.0259
5-Band AP Med/High538.01.1153
5-Band AP High499.91.2003
5-Band SF Bay Tour - Low946.40.6340
5-Band SF Bay Tour - Low/Med783.20.7661
5-Band SF Bay Tour - Medium687.50.8727
5-Band SF Bay Tour - Med/High630.20.9520
5-Band SF Bay Tour - High581.91.0311
Chicago-Mac Upwind0.8681
Chicago-Mac All Purpose0.9101
Chicago-Mac Downwind0.9516
Bayview-Mac Cove Island0.6816
Bayview-Mac Shore0.6854
Harvest Moon Regatta509.71.1773
Custom scoring options for Cyprus
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Denmark
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Spain
Scoring OptionTime On
Distance
Coastal/Long Distance642.7
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Estonia
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Custom scoring options for Finland
Scoring OptionTime On
Distance
Time On
Time
FinRating642.70.9336
FinRating, kevyt tuuli1069.50.9351
FinRating, kova tuuli501.60.9968
Custom scoring options for France
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Custom scoring options for Germany
Scoring OptionTime On
Time
Coastal/Long Distance0.9336
Triple Number Coastal/Long Distance Low0.8137
Triple Number Coastal/Long Distance Medium1.0139
Triple Number Coastal/Long Distance High1.1376
Triple Number Windward/Leeward Low0.6385
Triple Number Windward/Leeward Medium0.8311
Triple Number Windward/Leeward High0.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
For information
General Purpose Handicap (GPH)660.5
Custom scoring options for Greece
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Hungary
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Custom scoring options for Israel
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Japan
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Korea
Scoring OptionTime On
Distance
Triple Number Coastal/Long Distance Low737.4
Triple Number Coastal/Long Distance Medium591.8
Triple Number Coastal/Long Distance High527.4
Triple Number Windward/Leeward Low939.7
Triple Number Windward/Leeward Medium721.9
Triple Number Windward/Leeward High634.7
Predominantly Upwind649.5
Predominantly Downwind588.3
Predominantly Reaching570.5
Custom scoring options for Lithuania
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Netherlands
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8137
Triple Number Coastal/Long Distance Medium1.0139
Triple Number Coastal/Long Distance High1.1376
Triple Number Windward/Leeward Low0.6385
Triple Number Windward/Leeward Medium0.8311
Triple Number Windward/Leeward High0.9453
Coastal/Long Distance0.9336
Predominantly Upwind0.9237
Predominantly Downwind1.0198
For information
General Purpose Handicap (GPH)660.5
Custom scoring options for Norway
Scoring OptionTime On
Time
Distanseseilas Singeltall  (APH)1.0114
Distanseseilas Trippeltall svak vind0.8137
Distanseseilas Trippeltall mellomvind1.0139
Distanseseilas Trippeltall sterk vind1.1376
Pølsebane Trippeltall svak vind0.6385
Pølsebane Trippeltall mellomvind0.8311
Pølsebane Trippeltall sterk vind0.9453
Motvind Singeltall0.9237
Medvind Singeltall1.0198
Custom scoring options for Portugal
Scoring OptionTime On
Distance
Time On
Time
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Coastal/Long Distance642.70.9336
Custom scoring options for Russia
Scoring OptionTime On
Distance
Time On
Time
Predominantly Upwind649.50.9237
Predominantly Downwind588.31.0198
Custom scoring options for South Africa
Scoring OptionTime On
Distance
Time On
Time
Cape Doctor Inshore564.41.0630
Cape Doctor Coastal480.91.2476
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Custom scoring options for Slovenia
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8137
Triple Number Coastal/Long Distance Medium1.0139
Triple Number Coastal/Long Distance High1.1376
Triple Number Windward/Leeward Low0.6385
Triple Number Windward/Leeward Medium0.8311
Triple Number Windward/Leeward High0.9453
Custom scoring options for Switzerland
Scoring OptionTime On
Time
Triple Number Coastal/Long Distance Low0.8137
Triple Number Coastal/Long Distance Medium1.0139
Triple Number Coastal/Long Distance High1.1376
Triple Number Windward/Leeward Low0.6385
Triple Number Windward/Leeward Medium0.8311
Triple Number Windward/Leeward High0.9453
Custom scoring options for Sweden
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Predominantly Upwind649.50.9237
Predominantly Downwind588.31.0198
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for Ukraine
Scoring OptionTime On
Distance
Time On
Time
Coastal/Long Distance642.70.9336
Triple Number Coastal/Long Distance Low737.40.8137
Triple Number Coastal/Long Distance Medium591.81.0139
Triple Number Coastal/Long Distance High527.41.1376
Triple Number Windward/Leeward Low939.70.6385
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Performance Curve4 kt 6 kt 8 kt 10 kt 12 kt 14 kt 16 kt 20 kt 24 kt
Coastal/Long Distance1522.41030.8794.4679.5616.3577.9543.8475.3447.3
Custom scoring options for United States of America
Scoring OptionTODTOT
Triple Number AP Low737.40.8137
Triple Number AP Medium591.81.0138
Triple Number AP High527.41.1376
Triple Number Windward/Leeward Low981.10.6116
Triple Number Windward/Leeward Medium721.90.8311
Triple Number Windward/Leeward High634.70.9453
Single Number Predominant Upwind673.00.8916
Single Number Predominant Reaching583.41.0284
Single Number Predominant Downwind606.90.9887
Predominant Upwind - Low896.20.6695
Predominant Upwind - Low/Med700.60.8564
Predominant Upwind - Medium633.10.9478
Predominant Upwind - Med/High596.81.0053
Predominant Upwind - High575.31.0429
Predominant Downwind Low863.70.6947
Predominant Downwind Low/Med658.80.9108
Predominant Downwind Medium573.81.0457
Predominant Downwind Med/High504.11.1903
Predominant Downwind High436.81.3738
Predominant Reaching Low782.70.7665
Predominant Reaching Low/Med619.10.9692
Predominant Reaching Medium555.11.0810
Predominant Reaching Med/High504.41.1895
Predominant Reaching High464.31.2922
SA/DSPL Upwind27.37SA/DSPL Downwind67.39
Scoring OptionTODTOT
5-Band Windward/Leeward Low1091.50.5497
5-Band Windward/Leeward Low/Med816.40.7349
5-Band Windward/Leeward Medium712.60.8420
5-Band Windward/Leeward Med/High650.30.9226
5-Band Windward/Leeward High593.71.0106
Windward/Leeward 60-40 Low1104.40.5433
Windward/Leeward 60-40 Low/Med830.30.7227
Windward/Leeward 60-40 Medium730.00.8219
Windward/Leeward 60-40 Med/High675.00.8889
Windward/Leeward 60-40 High630.20.9521
5-Band AP Low803.90.7464
5-Band AP Low/Med655.80.9149
5-Band AP Medium584.91.0259
5-Band AP Med/High538.01.1153
5-Band AP High499.91.2003
5-Band SF Bay Tour - Low946.40.6340
5-Band SF Bay Tour - Low/Med783.20.7661
5-Band SF Bay Tour - Medium687.50.8727
5-Band SF Bay Tour - Med/High630.20.9520
5-Band SF Bay Tour - High581.91.0311
Chicago-Mac Upwind0.8681
Chicago-Mac All Purpose0.9101
Chicago-Mac Downwind0.9516
Bayview-Mac Cove Island0.6816
Bayview-Mac Shore0.6854
Harvest Moon Regatta509.71.1773
Club Certificate2025
JOKERITA-746J80
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
Data in meters/kilograms (Metric)
HULL AND APPENDAGES (Lightship Trim)
ClassJ-80 ODMeasurement02/09/2002HINPlan reviewHull constructionCoredCarbon rudderNoLight stanchionsNoTrim tabNo
LOA8.032Max. Beam2.488Draft1.497Displacement1,437Wetted area11.80IMS L7.196LSM06.802Acc. length8.032Sink (kg/mm) 9.00
VCGD-0.154VCGM-0.080RM Rated (kg·m) 27.1Limit of positive stability(°) N/AStability IndexN/ADefault crew weight397Declared crew weight350
PROPELLER
Propeller TypeNo Propeller
Hydro generatorNo
RIG
Forestay tensionAftInner stayNone FittedMast materialAluminumSingle headsail furlerYesMainsail furlerNoArticulated bowspritNoNon-circular riggingNoFiber riggingNoAdjustable mast footNoRunning backstays0Checkstays0Spreaders2Rotating mastNo
P9.144IG9.563ISP10.073MDT10.082MDL10.133MDT20.063MDL20.104TL0.380MW0.133GO0.133
E3.810J2.895BAS1.300FSD0.027SFJSPLWPLTPS4.800BD0.094MWTMCG
Flying Headsail Foretriangles IdISPTPS
FLOTATION AND STABILITY
Calculation methodRM entered directlyRM entered27.1Flotation Date10/10/2025
BALLAST
TANKS
INVENTORY
INVENTORY
Fixed Ballast Total0
Total deductible
Total deductible
Club Certificate2025
JOKERITA-746J80
FEDERAZIONE ITALIANA VELA
Distr.:UVAI  www.uvai.it
Tel. + 39068841273
E-mail  segreteria@uvai.it
MAINSAIL
IdMHBMUWMTWMHWMQWAreaMeas.DateCommentA0.160.791.452.483.2420.9109/10/2025
HEADSAIL
IdHHBHUWHTWHHWHQWHLPHLUBtnFlyingFTAreaMeas.DateCommentA0.081.482.959.30NoNo 13.9809/10/2025
ASYMMETRIC SPINNAKER
IdSLUSLESLSHWSFLRatioAreaMeas.DateCommentA12.209.9011.056.987.3795%64.9909/10/2025